Severe Thunderstorms in the Ohio Valley and Mid-Atlantic; Heat Continuing in the Central U.S.

Widespread strong to severe thunderstorms are expected from the Upper Ohio Valley into the Mid-Atlantic through Friday, with damaging winds as the primary threat. Dangerous heat will continue from the South-Central U.S. to the Midwest, Ohio/Tennessee valleys, and Mid-Atlantic. Widespread Major to Extreme Heat Risk is forecast into the weekend and will confine to the South-Central U.S. by Labor Day Read More >

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Last Map Update: Fri, Sep 4, 2026 at 2:48:22 am EDT

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For the upcoming holiday weekend, we will see higher rain chances (40 to 50%) beginning Friday and continuing through the weekend. While we are not expecting a total washout, you should be prepared for thunderstorms this weekend. Remember these key points: When thunder roars, go indoors! If out on a boat, seek shelter immediately and prepare for the potential for gusty, erratic winds. Let's make this holiday weekend a safe one!

The forecast for the Florida Keys will feature highs near 90°. Winds will be east to southeast near 5 mph, increasing to 5 to 10 mph. Skies will be partly cloudy with a chance of showers and thunderstorms Summer 2026's (June-July-August) total rainfall of 5.02 inches also ranks as the third driest on record for the Marathon area. The driest summer on record is 1956 with 4.20 inches of rainfall.

Light to Gentle SE Breezes. Seas in the Bay/Gulfside: 1 foot or less; Hawk Channel ~1 foot; FL Straits ~1 foot; SE Gulf 1 foot or less. Nearshore/bay waters smooth to light Chop. Chance of showers and thunderstorms